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United States Patent | 6,174,111 |
Anjanappa ,   et al. | January 16, 2001 |
A cutting tool (200, 202) has a longitudinally extending shaft portion (208) with a chucking part (204) and a cutting head (206). A cutting edge (220) is formed on the cutting head (206). The cutting edge (220) includes at least one cutting portion. A rake surface (224) is formed adjacent to at least one of the cutting portions (220) with the rake face being at a rake angle in the range from about -10.degree. to about 10.degree.. A clearance face (226) is formed adjacent to the at least one cutting portion opposite the rake face (224). The clearance face (226) is at a clearance angle in the range from about 10.degree. to about 50.degree.. An edge radius between the rake face and the clearance face is at a radius of from about 0.0003 to about 0.0040 inch.
Inventors: | Anjanappa; Muniswamappa (Columbia, MD); Crosby; Stephen R. (White Hall, MD); Timmons; Russell M. (Lutherville, MD); Williams; John D. (Champaign, IL) |
Assignee: | Black & Decker Inc. (Newark, DE); University of Maryland Baltimore County (Baltimore, MD) |
Appl. No.: | 837828 |
Filed: | April 22, 1997 |
Current U.S. Class: | 408/1R; 76/108.2; 175/420.1; 175/428; 408/144; 408/230 |
Intern'l Class: | B23B 035/00; B23B 051/02 |
Field of Search: | 408/1 R,144,227,229,230 76/108.2 175/57,414,420.1,425-428 |
335469 | Feb., 1886 | Moreau. | |
923514 | Jun., 1909 | Hardsocg. | |
1017352 | Feb., 1912 | Wagner. | |
1106966 | Aug., 1914 | Pauli. | |
1271396 | Jul., 1918 | Walker | 175/394. |
1324631 | Dec., 1919 | Usrey. | |
1847302 | Mar., 1932 | Emmons. | |
2051525 | Aug., 1936 | Howard. | |
2237901 | Apr., 1941 | Chun. | |
2294969 | Sep., 1942 | Engvall et al. | |
2522045 | Sep., 1950 | Knowles. | |
2524570 | Oct., 1950 | Phipps | 175/426. |
2635856 | Apr., 1953 | Scheffer. | |
2650071 | Aug., 1953 | Rassieur | 175/426. |
2673714 | Mar., 1954 | Hargrave | 175/394. |
2673716 | Mar., 1954 | Avery. | |
2865606 | Dec., 1958 | Farmer. | |
2877985 | Mar., 1959 | Petersen. | |
2879036 | Mar., 1959 | Wheeler. | |
2890021 | Jun., 1959 | Sandvig. | |
2902260 | Sep., 1959 | Tilden | 175/394. |
2969846 | Jan., 1961 | Sandvig. | |
3198270 | Aug., 1965 | Horvath | 175/420. |
3199381 | Aug., 1965 | Mackey. | |
3674101 | Jul., 1972 | Chromy. | |
3760894 | Sep., 1973 | Pitifer. | |
3765496 | Oct., 1973 | Flores et al. | 175/420. |
3845829 | Nov., 1974 | Schaumann. | |
3893353 | Jul., 1975 | Lahmeyer. | |
4143723 | Mar., 1979 | Schmotzer. | |
4210215 | Jul., 1980 | Peetz et al. | |
4243113 | Jan., 1981 | Kleine. | |
4286677 | Sep., 1981 | Guex. | |
4294319 | Oct., 1981 | Guergen. | |
4314616 | Feb., 1982 | Rauckhorst et al. | 175/394. |
4342368 | Aug., 1982 | Denman. | |
4503920 | Mar., 1985 | Clement | 175/394. |
4527638 | Jul., 1985 | Sanchez et al. | 175/57. |
4527643 | Jul., 1985 | Horton et al. | |
4549616 | Oct., 1985 | Rumpp et al. | |
4568227 | Feb., 1986 | Hogg. | |
4579180 | Apr., 1986 | Peetz et al. | |
4696355 | Sep., 1987 | Haussmann. | |
4729441 | Mar., 1988 | Peetz et al. | |
4765419 | Aug., 1988 | Scholz et al. | |
4787646 | Nov., 1988 | Ojanen | 175/420. |
4817742 | Apr., 1989 | Whysong. | |
4889200 | Dec., 1989 | Moser. | |
4903787 | Feb., 1990 | Moser et al. | |
4924953 | May., 1990 | Moser. | |
4951761 | Aug., 1990 | Peetz et al. | |
4967855 | Nov., 1990 | Moser. | |
4976325 | Dec., 1990 | Garbarino. | |
4984944 | Jan., 1991 | Pennington, Jr. et al. | |
5172775 | Dec., 1992 | Sheirer et al. | |
5181811 | Jan., 1993 | Hosoi. | |
5265688 | Nov., 1993 | Rumpp et al. | |
5265989 | Nov., 1993 | Stock. | |
5269387 | Dec., 1993 | Nance | 175/420. |
5312209 | May., 1994 | Lindblom. | |
5350261 | Sep., 1994 | Takaya et al. | |
5375672 | Dec., 1994 | Peay et al. | |
5423640 | Jun., 1995 | Lindblom et al. | |
5433281 | Jul., 1995 | Black. | |
Foreign Patent Documents | |||
961029 | Jan., 1975 | CA. | |
151171 | Jun., 1903 | DE. | |
199063 | May., 1906 | DE. | |
516866 | Jan., 1931 | DE. | |
763921 | Jul., 1949 | DE. | |
919402 | Sep., 1954 | DE. | |
924014 | Jan., 1955 | DE. | |
1193899 | Jun., 1965 | DE. | |
2211532 | Sep., 1973 | DE. | |
24 22 452 A1 | Nov., 1975 | DE. | |
2510298 | Sep., 1976 | DE. | |
2528003 | Jan., 1977 | DE. | |
25 42 001 A1 | Mar., 1977 | DE. | |
28 28 872 A1 | Apr., 1979 | DE. | |
29 42 314 A1 | Apr., 1980 | DE. | |
2841679 | Apr., 1980 | DE. | |
2910323 | Oct., 1980 | DE. | |
31 02 053 A1 | Feb., 1982 | DE. | |
31 12 497 A1 | Apr., 1982 | DE. | |
31 23 048 C2 | Jun., 1983 | DE. | |
83 37 3063 | Apr., 1984 | DE. | |
34 26 977 A1 | Jan., 1986 | DE. | |
3500202 | Jul., 1986 | DE. | |
38 03 910 A1 | Aug., 1988 | DE. | |
37 07 798 A1 | Sep., 1988 | DE. | |
39 08 674 A1 | Oct., 1989 | DE. | |
37 13 334 C2 | Apr., 1991 | DE. | |
40 03 375 C1 | May., 1991 | DE. | |
82 34 2415 | Jun., 1993 | DE. | |
0006417 | Jan., 1980 | EP. | |
0169402 | Jan., 1986 | EP. | |
01879 71 A2 | Jul., 1986 | EP. | |
01076 51 B1 | Dec., 1986 | EP. | |
02512 20 A1 | Jan., 1988 | EP. | |
02879 04 B1 | Mar., 1993 | EP. | |
03644 58 B1 | Nov., 1993 | EP. | |
03502 39 B1 | Jun., 1995 | EP. | |
783708 | Jul., 1935 | FR. | |
519475 | Mar., 1940 | GB. | |
832238 | Apr., 1960 | GB. | |
948107 | Jan., 1964 | GB. | |
1270347 | Apr., 1972 | GB. | |
2075409 | Nov., 1981 | GB. | |
2260283 | Apr., 1993 | GB. | |
59-166405 | Sep., 1984 | JP. | |
626896 | Sep., 1978 | SU. | |
1023062 | Jun., 1983 | SU. | |
WO 88/01214 | Feb., 1988 | WO. |